Hello everyone.
Im a newbie in electronics and i wanna study how a CC-CE cascade works.
I read some books for the formulas and the theory about it, but im confused a lil bit.
If i start with only the CE amplifier i have this circuit:
**broken link removed**
https://imgur.com/KTW7j
with random values
If i wanna write kirchoff formulas, there are:
Rc + Re = (Vcc - Vce)/Ic
where Vce = (Vcc)/2
and thevenin conditions are:
Rth = R1 // R2
Vth = (Rth/R1)*Vcc
and also:
Vth = Ib Rb + Vbe + Ic Rc with Ic ≈ β Ib
at least:
Av = - Rc/Re
However I have some problems with kirchoff formulas about CC-Ce cascade
There is my pspice model (gave by school):
https://adf.ly/3Z2SC
(with random values again)
-Vcc + (Vce)2 + I(re2)Re2 =0
where (Vce)2 is for the new resistor.
how must i continue?
i hope someone will help me, thanx.
Im a newbie in electronics and i wanna study how a CC-CE cascade works.
I read some books for the formulas and the theory about it, but im confused a lil bit.
If i start with only the CE amplifier i have this circuit:
**broken link removed**
https://imgur.com/KTW7j
with random values
If i wanna write kirchoff formulas, there are:
Rc + Re = (Vcc - Vce)/Ic
where Vce = (Vcc)/2
and thevenin conditions are:
Rth = R1 // R2
Vth = (Rth/R1)*Vcc
and also:
Vth = Ib Rb + Vbe + Ic Rc with Ic ≈ β Ib
at least:
Av = - Rc/Re
However I have some problems with kirchoff formulas about CC-Ce cascade
There is my pspice model (gave by school):
https://adf.ly/3Z2SC
(with random values again)
-Vcc + (Vce)2 + I(re2)Re2 =0
where (Vce)2 is for the new resistor.
how must i continue?
i hope someone will help me, thanx.
Last edited by a moderator: